31302320011129 has 2 divisors, whose sum is σ = 31302320011130. Its totient is φ = 31302320011128.

The previous prime is 31302320011121. The next prime is 31302320011153. The reversal of 31302320011129 is 92111002320313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20045275068025 + 11257044943104 = 4477195^2 + 3355152^2 .

It is an emirp because it is prime and its reverse (92111002320313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31302320011129 - 2³ = 31302320011121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31302320011097 and 31302320011106.

It is not a weakly prime, because it can be changed into another prime (31302320011121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15651160005564 + 15651160005565.

It is an arithmetic number, because the mean of its divisors is an integer number (15651160005565).

Almost surely, 2^{31302320011129} is an apocalyptic number.

It is an amenable number.

31302320011129 is a deficient number, since it is larger than the sum of its proper divisors (1).

31302320011129 is an equidigital number, since it uses as much as digits as its factorization.

31302320011129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 31302320011129 in words is "thirty-one trillion, three hundred two billion, three hundred twenty million, eleven thousand, one hundred twenty-nine".